Interested In Becoming A Member? Click below to access our application. Please fill out and return with a check made out to Mississippi Ambulance Alliance. Membership Application Form MAA Member Companies AAA Ambulance Service Acadian Ambulance Service ASAP EMS Corp Hernando Fire Department Desoto County EMS EmServ Ambulance Service Magnolia Regional Health Center EMS MedStat EMS North MS Medical Center EMS Pafford Emergency Medical Services, Inc. Olive Branch Fire Dept. Ambulance Service Pafford Medical Services of MS, Inc. Paratech Emergency Medical Service Southaven Fire Department Ambulance Service Wayne General Hospital EMS AmeriPro EMS of Mississippi, LLC American Medical Response (AMR) Covington County Hospital Ambulance Service Horn Lake Fire & EMS Lifeguard EMS LifeCare EMS Miss-Lou Ambulance Service Metro Ambulance Service Vicksburg Fire Department & EMS Rural Rapid Response, Inc.